The systematic study of antipsychotic-induced movement disorders in young psychiatric patients is very sparse. We assessed the presence of tardive dyskinesia in an adolescent in-patient psychiatric ward. Eighteen per cent (3/17) exhibited either pronounced or subtle signs of tardive dyskinesia. Our study suggests that young psychiatric patients may develop signs of tardive dyskinesia even though they are exposed to relatively short-term neuroleptic treatment and at dosages that are relatively low. We advocate frequent and systematic monitoring of adolescent patients taking antipsychotic drugs in order to minimize the emergence of this long-term, troublesome complication of neuroleptic drugs.